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IAWA Feature Numbers and Codes Menus

Modern Hardwood Menu
Fossil Hardwood Menu
Modern Softwood Menu

IAWA Modern Hardwood Data Sheet (Excel format)
IAWA Fossil Hardwood Data Sheet (Excel format)
IAWA Modern Softwood Data Sheet (Excel format)

IAWA list of microscopic features for hardwood identification (PDF)
IAWA list of microscopic features for softwood identification (PDF)
Browse & Search Images [image viewing hints]
Browse by Taxonomy

Modern Hardwood Family or Genus
Fossil Hardwood Family or Genus
Modern Softwood Family or Genus
Enter IAWA Feature Numbers and Codes

Enter an IAWA Feature Number followed by one coding letter below:
p (present)
a (absent)
r (present required)
e (absent required)

Example: 1p 5p 13r 22p 24a 30e


Hint: when allowing mismatches, it is useful to use codes r or e






Search InsideWood by Keyword [keyword searching hints]

Search by taxa, common name, author of publication, authority, etc.

Example: Gasson
  • The InsideWood database has 9,942 descriptions and 59,111 images.
  • 7,565 Modern Hardwood descriptions and 54,440 Modern Hardwood images
  • 2,142 Fossil Hardwood descriptions and 3,189 Fossil Hardwood images
  • 235 Modern Softwood descriptions and 1,482 Modern Softwood images
Inside Wood Version unknown